Spot the python3 syntax:

    super(ClassYouObviouslyMean, self).send_response(*a, **kw) 
    super().send_response(*a, **kw) 

Spot the python3 syntax:

    def f(x=default_value, y=None): pass
    def f(x:arbitrary_object=default_value, 
          y:this_doesnt_equal_None_y_does=None) -> more_wtf: ...